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Analysis and Experiment on Multi-source Beat Vibration
Author(s): Chen Moli, Li Shunming, Wen Weidong, Liu Jianya, Du Jianjian
Pages: 202-
206
Year: 2011
Issue:
2
Journal: Journal of Vibration Measurement & Diagnosis
Abstract: 首先采用多维图形法对拍振的小频差问题进行了仿真分析和试验,将传统的二拍振动理论扩展到多源拍振,获得了拍振的上下限幅值和基频,通过仿真试验验证了理论解的正确性;然后提出了观测小频差现象的多维图形法,绘制了二拍的Lissajous图形和三拍的扭线面图形,对不同频差得到的拍图进行了分析.分析发现,Lissajous图形和扭线面图形对微小频差十分敏感;最后开展了平板叶片的拍振试验.试验表明,通过多源拍振理...
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